Every year about one million tourists visit Stonehenge, which is believed __________before the Pyramids, about 4,000 years ago. 
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A
to build
B
to have built
C
to be built
D
to have been built
推荐题目
I got to the office earlier that day,   the 7:30 train from Paddington
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A
caught
B
to have caught
C
to catch
D
having caught
Tina is the only foreigner ________to the evening party last night.
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A
invited
B
inviting
C
to invite
D
to be invited
English is a language ______ in many countries.
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A
spoken
B
speaking
C
be spoken
D
to speak